Agilent CP-Sil 24 CB 30m x 0.32mm x 0.25um CP7831

The Agilent CP-Sil 24 CB (CP7831) is a bonded, cross‑linked GC capillary column (30 m x 0.32 mm ID x 0.25 µm film) with a mid‑polarity 50% phenyl/50% dimethylpolysiloxane stationary phase. It is designed for routine gas chromatographic separations where mid‑polarity selectivity is required, and the manufacturer cites suitability for analysis of amines, drugs and pesticides and use with electron capture detection. The column is supplied on fused‑silica tubing in a standard 7‑inch format and is rated for typical GC operating temperatures up to about 280/300 °C.

Key Features:

• Length: 30 m
• Inner diameter: 0.32 mm (320 µm)
• Film thickness: 0.25 µm
• Phase chemistry: 50% phenyl / 50% dimethylpolysiloxane (CP‑Sil 24 CB)
• Capillary tubing: fused silica; Format: 7 inch
• Temperature range: approx. 40 °C to 280/300 °C
• Polarity: mid polarity (USP code G3)

Advantages:

• Mid‑polarity 50% phenyl phase provides enhanced selectivity for amines, drugs and pesticides, and is suitable for ECD applications.
• Bonded and cross‑linked stationary phase gives chemical robustness and allows solvent rinsing for maintenance.
• Thin (0.25 µm) film and 0.32 mm ID balance sample capacity and efficiency for routine analyses.
• Supplied on fused‑silica tubing in an industry standard format for straightforward installation and compatibility with GC systems.